Flooring underlayment



FIG. 1 is a perspective view of a flooring underlayment in accordance with my invention;

FIG. 2 is a top view thereof;

FIG. 3 is a bottom view thereof;

FIG. 4 is an end view thereof, an opposing end view being a mirror image thereof; and,

FIG. 5 is a side view thereof, an opposing side view being a mirror image thereof.

The broken line portions of the figure drawings are included to show portions of the article that form no part of the claimed design. 

CLAIM The ornamental design for a flooring underlayment, as shown and described herein. 